Cita APA (7th ed.)

Wilkinson, P. (2007). International relations: A very short introductions. U. pr.

Cita Chicago (17th ed.)

Wilkinson, Paul. International Relations: A Very Short Introductions. Oxford: U. pr, 2007.

Cita MLA (9th ed.)

Wilkinson, Paul. International Relations: A Very Short Introductions. U. pr, 2007.